C. H. Smyth Description of a Collection of Argentine Bird Eggs https://doi.org/10.56178/eh.v4i2.198 PDF (Spanish) 125-152
R. Lehmann-Nitsche Birds in South American Folklore https://doi.org/10.56178/eh.v4i2.200 PDF (Spanish) 166-173
William H. Hudson, Alfredo Steullet, Enrique Deautier Partridges of Argentina https://doi.org/10.56178/eh.v4i2.201 PDF (Spanish) 174-183
Enrique A. Deautier The Hooded Siskins of the Argentine Republic https://doi.org/10.56178/eh.v4i2.202 PDF (Spanish) 184-187
Emilio Budin The nest of the Chaetocercus burmeisteri hummingbird https://doi.org/10.56178/eh.v4i2.203 PDF (Spanish) 188-191
Hugo Salomón The Pan-American League for the Protection of Nature https://doi.org/10.56178/eh.v4i2.204 PDF (Spanish) 191-194
Ingo Krumbiegel, Salvador Mazza Chemical Relationships Between Porphyrinuria and Certain Feather Pigments, and Their Potential Therapeutic Applications https://doi.org/10.56178/eh.v4i2.205 PDF (Spanish) 194-198
Juan B. Daguerre A Few Things About the Habits of the Southern Crested Caracara (Polyborus plancus) https://doi.org/10.56178/eh.v4i2.207 PDF (Spanish) 202-204
Celia B. de Pereyra Observations on Some Birds of Buenos Aires https://doi.org/10.56178/eh.v4i2.208 PDF (Spanish) 204-206
Alberto Castellanos The Flight of the Condors (Vultur gryphus Lin.) https://doi.org/10.56178/eh.v4i2.209 PDF (Spanish) 206-207
Abel Renard On hunting the Elegant Crested Tinamou (Calopezus elegans) https://doi.org/10.56178/eh.v4i2.210 PDF (Spanish) 207-208
